ammonium bicarbonate(redirected from Ammonium hydrogen carbonate)
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A white crystalline salt, bicarbonate of ammonium, NH4HCO3, used in fire-extinguishing compounds and in baking powder.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.